For MTN customers, the trunk prefix '0' is retained although now omitted
for calls to its network from outside Rwanda. For example, if domestic
dialling of an MTN GSM number was 03xxxxxx, it became 0783xxxxxx.

However, there was a 2004 report of updated numbering ranges courtesy
Hugh M. Hamilton, based on findings from the 2003-4 Rwanda telephone
directory book:

"The book is the first issued since 1994. Sometime between 2000 and now,
the 7 xx xx series in Kigali was changed to 57 xx xx. The 8 xx xx series
in Kigali remains as is. There is also one eight-digit landline number:
The Office of the President of Rwanda in Kigali, 59 06 20 00."